Combined type-writing and computing machine.



c. STICKNIEY. r .COMBINED TYPE WRITING AND COMPUTING MACHINE.

Arrclmnlou min ocnzo. nu. .l

` Patented ug. 21,` 1911;

s anun-sucer 2.

B. c. STICKNEY. l COMBINED T-Y-PE walnuts Aun comruma MACHINE'.

Armcmon nLEp ocT. zu,` mh

Patented Aug. 21,51917.

- s SHEETS-SHEET 3.!

www

UNITED sTATEs PATENT OFFICE.

BURNH'AM c. s'rIcnNnr, or ELIZABETH, NEW JERSEY, AssIeNonTognNDnnWoon COMPUTING MACHINE COMPANY, or Naw Yoax, N. Y.. A coaroaA'TIoN-or Naw YORK.

COMBINED TYPE-WRITING AND ConUTING MACHINE I' Specication of Letters Patent. I Pateted ug. 21 1917;

Application led October 20,1911. Serial No. 655,698,

To all whom it may concern: 4 Be it known that I BURNHAM C. STICK- Nnr, a citizen of the nited States residing in Elizabeth, in thecounty of Union4 and State 'of New Jersey, have invented certain new and useful Improvements in Combined Type-Writing and Computing which the following is a specification.

.This invention relates to calculating machines combined with writing mechanism, and more particularly to means for determining whether the calculating mechanism shall add or subtract, or remain neutral or ineffective at the operation. of the writing mechanism. It also relates to means. for shifting the ribbon mechanism so that amounts tol be subtracted mayjbe written in a different color from other amounts.

I have provided that the decimal tabulating keys for the typewriter carriage shall b e capable of shifting or reversing the action of the computing mechanism, so that, for instance, when the tabulating mechanism is operated to bring the typewriter carriage to position for writing. in the first column of numbers on the work sheet, the machine shalljbeset bv such tabulating mechanism to add the num r written; when the tabulatmg, mechanism is operated to bring the carriage to the secon( column of writing on 'the work sheet, said tabulating mechanism` shall reverse the operation of the computing mechanism so that the number, written in the secondcolumn shall he subtracted; by suitablemeans the number written in the third column may be added, while the number y'written in the fourth column maybe neither added nor subtracted, and so on as may be desired; the `tabulating mechanism having control o f the computing devices `to deter- -mine'vhetherfat any' particular time they shall facld or subtract or remain neutral.

'I also preferably connect to thetabulat ing keys means for shiftinfv1 the ribbon mechanism, so that the device s all ,p rintred or any other special color when writin 1 n a column'v in which the numbers are elng subtracted.

'In the accompanying drawings, Fi re 1 is a sectional slde elet-ration of andJ nderwood typewriting and computln `machine, having -a decimal tabulator,

showing the p resentlimprovements applied theretog' the computing mechanism' being shown neutral position ol.' silence, so that Machines, -of

sition when th with a-pinion 11 connected to an no computation will Ibe performed thereon. when the numeral keys' are operated;

Fig. 2 should be read in connection with Fig. 1, and. shows in elevationman .of the" new parts that have been added to t e tabulating mechanism of the typewriter.

Fig. 3 is a part sectional re'ar elevation of the typewriting, tabulating and computi-` m mechanisms. i

ig. 4 is a sectional lan view of theoomif puting mechanism and) part of the tabulat' in mechanism. l A' ig. 5- is a viewsimilar to Fig. 2,' but showing the parts in normal positions. Fig. `6 is a diagram showing the position' of the ribbon shi ting'mechamsm when the machine is in condition .for the addition'of through the black strip of ribbon.

Fig. 7 is a similar view, showing the p07V e computing mechanism is silenced; the types still striking through the black ribbon.

Fig. 8 is a, similar view, showing the ribbon mechanism shifted so that the types will strike through the red ribbon when` subtraction isv being performedby the coinputing mechanism. f

The invention is illustrated in connection with a Vmachine in which the computing wheels4 remain stationary while the. 'master numbers; the type at this time striking"4 ses wheel moves stcp-byfstep, belng' forthat4 i purpose connected to the paper carriage of the. typewriting machine. 4This connectionis made at the beginning, of the writing-of 'cach column, and 1s automatically broken at the conclusion of the writing of each column. The improvements may however -be used' in connection with other constructionsof com;-

In the Underwood machine, numerals@ puting mechanism.

keys '1 depress levers 2 'to' vibrate b ell'clallltsi` 3, and swing type bars 4 u to strikerearwa-rdly against the front-si e o fa platen'oi Said platen is mounted'- on a carnage 6, running on' tracks 7, 8,. and is drivenby a spring barrel4 9, and also has a rack I0 meshing Y Decimal tabulator keys 14 mounted.

upon-levers 15', which, at their "rear ends,

.raise the'stop rods 16, Vhaving' stops' 17 at escapem'ent'l being; seen at fdrive shaft 28,

theirupper ends. These' stops ma. coperate with interchangeably adjustable colhe computin' mechanism includes a aving4 a bevel pinion 29 meshingI with a.; pinion uponaV square shaft'l, the latter being splinedto al master-wheel 32, which moves along the shaft andj has spurs-or teeth 33 to engage an internal' set of teeth 34-formed upon aV gan of computing wheels 35, the latter mount ini 36 and also having exteriorteeth to' mesh. with gears 38, the latter having number wheels 39. The masterwheel- 32 is swiveledin a travelnghollow mandrel orarbor 40, within which the masterfwheel shaft-3L may project, the swivel-joint being: shown., at 41,. and' permittin thel masterwhee132 to-berotated by the s aft 31, while saidmaster-wheel is caused to=travel in axial:

direction-by themandrel or, arbor-40.

l The drive shaft 28 may be driven and con'- trlledl either directly by the numerali keys 1 or inany other suitable manner, as forA instanceinfthe manner set forth in pending lpplication No. 569,502,

11o-.part of thepresent invention, it is deemed unnary toillustrate the same. shaft, it walLbe understood, is rotated. automatically upon the depression of any of thenumeral keysl, the extent of rotation depending -upon which key is depressed.

The mandrel 40 is moved endwise by means cfm forwardly and. rearwardly extending lever 42, pivoted midway of its ends by means of'glid'geonsf-43. so as to swingin a horizontalplanc.; At'its forward end the lever is slotted at 44 to engage-a pin 45 protliaarriage which: carries the Vmand're1 \4( said carriage comprising a tube '4B-sliding upon a fxedfrod 47. and also an ann 48, slidng'upon a fixed horizontal rod 49; the mandrel 40 being secured to the forwardend-'of l'theiarm 48 by means of a setiscrew 50.- -The movement of the mandrel'40 is ofi course.' only suiicient to enable the-master-wheel32 to-travel the length ofthe gang of computing-wheels 35. one of which is provided for each number wheel 39. The-rod 47 coperates with two similar rods or studs 49 and 47, all projecting from a framework plate or bracket 47, to carry a smalliplate 147i which also supports the end' of r0d149;`

- filed June 29, 1910. ce the driving means for saidshasft form- It will be seen that 49 and 47",

Fig. 4, carry the casing 36.

At its rearl end, the leverj42 has a slot 51 to engage a pin 52 projecting down from a slide 53, the latter carrying the stem 54,of a hook 55, adapted to engage lugs 56 formed upon the blades or stops 18 which are forked ,to fit into the double rack 19, 20, for connectingthe paper carriage 6 to the master-Wheel' 324 to cause the latter to travel step-by-step .with the paper carria e.

The slide 58 work's 1n a tubular guide or housing 58, which is slotted on its under side at 59 to permit the pin 52 to pass down to the lever-.42. The stem 54 of "the hook passes; through-a longitudinal perforation 1n. the-slide153fand is adjustably s'xecurled to the latter byl set screws 60. This permits slight .longitudinal adjustment of the hook invorder to=enab1e the'master-whe'el- 32 to b e adjustedproperly relatively to the comput-A in'gfwheels 35 while the hook is engaged by oneof the lugs 56.A 'Ille rack 21 has at 60* the usual provision for longitudinaladjust1 ment. The .slide 53 has a feather 6l, to fit engage any of the lugs. 56. The hook normally springs uptoen gethe adjacent lug. For'this purpose the haok may be' made re si-lient or flexible, and acompression spring 63 may be=employed to aid ward movementof the hook; said spring housed in a-boss64, andconfined by a screw 65; andpressing a plunger-66zup against a straight portion: of the under` side of the hoolr,`thus holding the latter up while permitting it to move freely endwise. The b'o 64' is formed on a bushing 67, which is vertically slotted at 68'to form a guide for the hookl; saidv bushing serving as a plug to close thisend of lthe tubular housing 58.

Whnthe hook is'in engagement with one of said lugs 56, it is carried with the paperl carriage -6 in letter-feedingdirectionv to cause the lever 42 to swing upon its ivot anr] thereby drive the mandrel 40 an -the masternvheel 32 in the opposite direction. As the keys 1 are operated towrite figures the book 55 from that lug 56 .with which it has been' in engagement. 34s 'soon as Vthe hook is released, areturning sprin 71 -connected' to thelever 42 swing-s the' atte'r. in the opposite'direction, carrying the masterw-heel 32rbaclr'ward1y, that is, toward;- the or cause the up' intoitheJslot 59, to prevent the slide and the 3.1.5 in the column, the master-wheel82' is corre-' a. new line ,of.wr1ting, .if the about i hook. being pressed up to enga said lu by means o the spring 63, an the hoo becoming fully seated in the notch 62. The

writing of the numbers in the succeeding column will now proceed,4 and said number will be accumulated on said ,com uting wheels by the number wheels 39, in the mannerA already referredto. l When returning the carria e 6 to begin ook is in engagement with one of the lugs 56, it is, carried-until a cam edge 72 thereon'strikes a studor roller 73 which may be pivoted upon a screw'` 74, threaded into the top of L the boss v6d; 'andby-means of said roller. or :obstructiom the hook is cammed down- .wardlynnd .released Ifrom the lug.56. The aprin .f-.63=fimmediately liftsthe hook again, and elu r 56" in succession ride freely over a beve or point 75 formed on the tip lof' ,the hook; the last lug in the series being j caughtm'ndheld by the hook when the car- 'agit-beginsto4v run in letterfeeding directin;

ere .is providedmeans for either writer.q Each" type bar 4 has a h v Upon said-'universal bar frame 77 is a frame 78 bonvibrator 79 by means' of pins"80, 81, fast -on.the lever `82, said pins en ging slots in frameg.78',. so as lto cause said lever 82 to ts pivot 82 in the usuall manner. Said .vibrator is described in dei -tail -copending case above referred to.

The .color. used isi-determined by the position of the-pins 80,81, which serve to turn lever 82 operating said vibrator 79 about its 83 of universal ,fulcuin'." If the u per pin 80 isused, thev throw ofthe vibrating lever 82 is small, and

only the upper part of the ribbon comes between thetype and the platen. Thisv is lusual-ly black. If the lower pin 81 is used,

the: throw :is much greater and the lower partof the ribbon cornes between the type afd the platen.'j is usually red. 4

The' arrangement of said pins is clearly shown in elevation in Fig. 3, and in plan 1n Fig. 4.t Here it will be seen that they 'are adapted tobeen aged by either of the sides ar. frame 77, shiftable by 87 of shaft 88 1 having the usual color-keys 89 rand 90. These keys then may set the color of the ribbon.

Also pivoted to said arm 87 is a link 91, which, 'through bell crank 92 and linlil 93, is moved by arm 94 fast onQeontrol shaft' 95. This 4shaft scribed, is moved automatically through the l whichieng'ages with Ia universal bar 7 6, carupon a frame 77 which operates escapement-,'dogs12. in the usual manner,

comprising sides 83 which. operate the rib- 'ranged viewed in a manner hereinafter de,

' latter is a pin 100, controlling double clutch 101. This clutch 101 is splinedito shaft 28, but is movable up and down by said pin 100 to engage 4with upper or lower pinion 29 andfcause pinion 30 to drive master wheels 32; or said clutch 101 may occupy an intermediate position and be idle. It is obvious that pinion 30 can thus be driven'in either direction, and said master wheel 32 may either be idle, add or subtract, as fully described in the (zo-pending application above referred to, Said bell crank 98 may be moved by a handle 102 fast on it, and

through link 97 above described, this-handle will also move control shaft 95 and set the ribbon mechanism.

Means are provided for operating control shaft 95 automatically at the actuation of the tabulator keys so that work of a tabular nature can be done involving mixed operations n f adding and subtracting, without any' attention on the part of the operator beyond pressing the tabulator keys after the typewriter is set for the given kind of work..

Mounted above rack bar 21 and pivotally supported at 104 at each end of the carriage,y is a leaf 103 controlledby the tabulator keys to set theparts 'for adding or subtracting or to be neutralas the case may be and to Simultaneously shift the ribbon to its appro priate color. An arm 105 of a bell crank 106 pivoted to bear against leaf 103, and by'arm 108 turns control shaft 95, which latter'r con. trols the ribbon and computing mechanism. A returning spring 108 presses arm 108 outward, and consequently arm 105 down' upon said leaf.` Said leaf 103 is movedup by the rack 'release link 26, and therefore .bythe returning tabulator rest or jack 109 pivoted on lever 110which latter is pivoted' to rack release link 26 at 112 and fulcrumed on the main frame at 111.- Said arm 109 is pulledsby .a spring 113 against a pin or rest 114 which' g'uides'it, and said `sprin will always raise said arm when the tabu ator key. is released, sothat pawl 115 or 116 near its upper'end 117 may keys, through1 an arm,

in its line of travel.

In Fi 3 is shown shown in the same position in section. Parts of the edge are cut away as atl118, V119, 119 while parts 120, 120 are of full wi t Sai y full width parts 120 are adapted to bestl'uck by pawl 116as it ascends and so raise leaf 103-w11icb will move the parts Vto the posi leaf 10a 'raised' (as om the backl-'and in Fig. 2'it 1s usura tion-shown in Fi 2. In this position arm talmlator key, and strikes its pawl 116 105 has risen4 an rotated control shaft 95, against the' portion 118 of 103. This will so that the machine will subtract. This would shift thel part-s shownl in Fig. 1-by moving arms 94 and 96-to the right, raisin clutch 101 to en age with up er'spur 2 and simultaneous y slide 83 o'- the 'ribbon color changing mechanism would assume the position iii-Fi 3 and 4.

If jack 109 is raised by depressing s tabulator key when the carriage is so positioned the part 118 of the leaf 103 (cut to an intermediate'height) is opposite: 'ack`109,. then lower pawl 115 will be the onl part ofsaid jack whose line of travel wil fall within said leaf 103, and-the leaf willv be raised to the intermediate position shown in Fig. 1. In that position control shaft will be so turned that clutch 101 willr be neutral,`and the ribbon will write black.

At Fig. 5, a tabulntor. key is depressed, and the jack 109 is op osite a deepl cutaway portion 119 of t e leaf-103. en therefore, thel bi'ilator key is released, an jack 109- allowed ing with the jack-109', the-'transition from lows son ey', alecmia en; shi

,oneedge to another in the width ofleaf 103 is made bg bev`els,.as.shown in- Fig; 3, at 121, 121, whic jack -109y out in passing it, and: so. event the' machine from being iniired or Ae carriageV fromv being` locked.

lhevcfperation on the machine is as" folith the carriage set as in Fig.' 3, near the g ofa line, the operator has pressed and: released a-ta'bulator key, whereby oontrolshaft 95- has been moved to pullbach 97;14 causing elutcliA 101, to; en'- gage withn thrill' er pinion f29andfdrive the computing mec anism'to subtract. At'the' asviewedin'Fig 4):to the left,

in -81 andbn thei'eti portion of the n intof-ope'n on.' Arocordingly the type keys aneoperated-l-to: write the 'number` in.- red, whichv iijunibeisV issubtracted'f by the totaliz'er.

ZB. pressing'andreleasin .another tabula- 'toL the second:

column-stop.-

108 is-cut away at 119 so'. it will'not be'caugrht by either 'pawlof shown in Fig. I5;A Arm,

1.09, but remains as 105 is held down b. shaft '9 5 andfclutc for the computing spring 108, an'df control l 101. remain in' sition mechanism to d, and

on- Ssidlshaftghlds the ribbon' mechanient-in? polii'tionr for writing'ble'clr'.v The desinedf' nunere 'are their written', and ladded iii. Then ai tablator keyis'pressed, and the, cai-riegeis bronghtf'to rest against tlie'"thurd 'te ebp.. Jeuk maris-swininereiem i the to rise, it' will do so without striking lea-103, because the latter is at 4 raise said leaf to the position shown in Fig. lf'and arm 105 will shift control shaft J5 so ne to move clutch 101 to neutral position, so that numerals written will not be recorded: in the computing mechanism. Control shaft 95 likewise moves the rod 85 of ribbon shi-itin mechanism, but not suiciently tn cause the ribbon to change, so the color rcmans black.

Othersimilaiv results follow the pressing of tabalating'keys, till' the end' of the line is reached. In the machine as= illustrated, the last operation is subtraction. If the carria at the endof a. line is now pushed back by and', the broad on pawl 1.216 of jac 109 tilla narrow partl of 1-19 of said leaf is reached. Then said leaf 103 will fall into its lowest position, completely free of' jack 109 and the carriage may be movedf to begin the next line; the parts resumingtheir normal addition positions.

Normally the leaf, in its lowest or addition position, rests on' stops 122, and the keys 89 and 90 or the handle 102 may be used to control any desired \comp1iting operation.' or ribbon color'provided a tabulator ly is not depressed; Or if leaf 103 is remov the combined machine may be used as a computing machine with manuel ribblilinfhift, and manual computing mechanism s i Non'e of the figures shows all the' parts in normal positions. At Fig'. 5 the leaf 103 is in normal position, but the jack 109 is shown in its lowest position. The normal position of this jack is the'sam'e as at Fig. 2, but in this ligure 4the leaf is shown swung up. Whenever any tabulator key is depressed, the' jack is' drawn down from 'normal position' i -tothe'position seen at Fig. 5; the p'ewl gesridin over'the of the leaf. As the )ack Y' es its lowest position, the spring11i3 snaps 'it undertheleaf 103 (which t vatlliisitime isinl its normal position ;where- .by all of the arts are'brought to e Fi 5 pbsitioi'i. ile! they ane in positigon, the: carriage-travels arrested gli con tact of the next .ioliix'nn-stbp 18 wit that denominatiionjstop I .Gwhich has been elevatedfat thetabulating operation.. The tabulator' ke iii'4 then released,-restoring the .ntiol o the leterlgeeding mechanism vcr 6lrl'i a ,ml'pm aidedfby' eretumin'gspring usuallcoiled around shaft 24 ('Fig` 1)' to liftv t e 'ack 109, l'bgether withthe leaf' 103, to the ig. 2 position; in which position these parts remainduring the ensuing movement of the carriagei iii' letter' feeding' direction (with the? computin mechanism shifted to en btrl'wtion amd "e ribbonmechanism to write red) until: the and ofthe ledge 120'1siesche,

'ico

setting ofsai Ieaf,;an arm moved hy said 4- leaf, and a second arm connecting'saidarmf man whereupon the leaf trips of from the jack and drops to normal position,'.the color of the ribbon changingtofblack, andthe computingI mechanism Areturning to addition condition. If after theco'mpletion of any ,tabulating operation there should be a gap in the Vleaf above the jack, they latter, of course, will not, when rising, a'ect the leaf, but the latter will remain m normal addi; tion osition. If. at any time the'operator sho d desire to'y set ,the car-ria e back to writein any' column, the prefers, le method would b'e to run' the carriage back an excessive` distance, -and thenuse the tabulating mechanism to bring-the carrie e to the desired position, so asto get the'l nelit of theconditioncontrolling function of thetabu-4 lating mechanism and hence have the color ofthe' ribbon right and the computin mech- 'Imam inthe right. condition for wor ing in that' column. Another' method would be, after the carriage back to thedesred coiumn, to old the carriage with one hand rov l set bythe Ttabulating key, P ,ma

80 to"'mei-e`:1adding .andsubtracting mechanisms, -bu't y'that the contro means could bereidilyr usedfor Ya machine: per# forming other operatif-l f and .that't is not limitedtotwo-colored ne..

Variations may to within the scope of the'jinvention'rand portions of'the imrovements may -be---used' withoutothers; aving thus described-my "invention, *I

1. In a combined typewriting and computi ing machine, atypcwriter-l carriage, aniadd= ing-'and a' subtracting mechanism, a link controlling. 'said mechanism, acontrolshaft `ino said link, aleaf on the carrie the typewriter a tabulator keytocont'ro Athe ='to' said control shaft? lioi'ng machine, a carriage, a leaf leaf to'shift thefmechanism.l

ing machine, a' .decimal tabulatin'g4 devi mec 'sm, -said contollin means'I opend- 'ent uponjthe 'movement o Athe tabulating device.

. 4. Ina combined t writing and eomput'- writer carriage, a mecna'- Y ing machine, a capable o` omg more than .one kmd 'cepte by said' pawl, a spring moving said traveling, while the other hand deand an' armson the shaft move b said lea Aan arm moved ,b

movedjbyadfleaf; and -a moved by 2. In'acombined typewritingan'dconpiitL movable ,onf saldi earria'ge, z tabulator keys cooperating;- with stops to release and set said cari-ing@H meansmoved by said. tabulator keys tocontrol .said''1eaf, and 'an arm movedhfsaii a. In a combined typwaing hasta iaimechanismtoperform more thanone kind of'A com utation, and -means r'contx-ollin said a control arm s et seid leaf.

to said 'lea -mo ved to ino 'erative 'osition by said y,

a pawl on sai jack, a eaf o the'tylpewriter 1 carrie having parts adapted to e inter- 'ack to operative position, an arm governed y said leaf, and,a shaft moved by said arm to control the computing mechanism. 5. In a combined typewriting and computingy machine, a t pewriter carriage, a mech-l amsm capable o doing more than one -kind of computation, a decimalV tabulating device havin keys, aleaf on said carriage voontrolle by the keys o f said tabulatin device, a shaft an arm-on the shaft, a bel crank 8 0 moved by the leaf onrthe carria to move said arm and means moved by t e shaft tocontrol the computing mechanism.

6. In' a combined typewriting and computing machine, 'a typewriter carriage, la' mechanism adapted to perform more than one kind of computation, a dimal tabulating. device having-keys, a leaf on said carringe, a jack moved by' the keys of said tabulating device to control said 4leaf, 'a 44shaft to control the computin mechanism 'nil t'o govern the computing mech .7. In ajcombined typewri'ting' andcoma puting machine, a typewriter carriage,-=a.96 mechanism adapted to perform moief t hs`,n"44 one kind of. computation, a decimal'tabulatng device havingkeys a leafolifsaid4 carriage, a jack movedf by the jkeys of said tabulating4 device to control sa1d. lea'f," a shaft to control thecom'p'uting said leaf, and a link oon-f puting;n1'n"chine," com 'a. i l6 5 control i or soar .com sans. mechanism, a typewriter carria e uding an escapement-anda "u -ta mating-da" vice,v a rack 'rele'ase,coop`eratmg witlisaid tahulatingdevic'eQ''n arm inovmgwithsaid wk rlese' leef 0n' the @fringes moved byisaid-ain-'toset sad'l'eaf, an` arni connections -comprking 1a' I lelg 'n stid,'ca ri." ria fas "a" movsai g Pigt se for-moving ai out of the path of said'leafto 1'eeet-.1t,' andns '10.' The combination'with a carriwaggfnnd' ,tabulating' mechanism therefor,-'of omnpnt 1 mechanism including- .means for determlningwhether the compu 'm shtllladd'orfsubtract; and mean connected 18d are,

id tabulatingmechanism to operate after e advance o the carriage and when the oulating operation has been completed, for o ,erating lsaid determining means.

.'1'1. The combinst'on wxthn carriage and hibula'tig mechanism therefor, of computjmechanism including means fordeter mmingwhether the coin uting mechanism shall add or subtract, an means connected 1o saldnvtabulating mechanism to operate' -`the'advance of the carriage and when e taulatmg operation has been completed, for setting' said determinin meansand 'lpntining'- itin the adjuste position durf the ensuingtraverse oftho computing zpnejb the carriage.

l2 ihecombination with a letter-feeding carriage and a computing mechanism capable of performing either addition-or subtrac- 2o lilou,4 of means normally inoperative during ,ej run of 4the carriage, for determining 'whether the computing mechanism shall perform addition or subtraction, a. tabulatin [anismfand means operatively connecte a5 ,with said tabulating mechanism for actuating said determining means and controllin e,

ismcapa le of doing more than one of computation, a decimal tabulating device, a leaf on the carriage, means dedent upon the movements of the tabu- 155mg 'device `for moving said leaf out of hnrmalposition relatively to said carriage, $0 iid means forcontrolling the computing set by the leaf.

15. In a combined typewriting and computing machine n t pewriter carriage, a mechanism capable o doing more than one -`kid.'of computation, a decimal tabulatmg 'devi a device coperating with the carpositioning the computing columns, lllf on theecar-riage, and means cle endent upon'the movements of the keys of t c tabulati device fc: causing said leaf to coneo trolt 'computing mechanism.

v16. In a combined typewrlt-mg and adding machine, a carriage, tabulator mechanism A thexeforlincluding keys, and a leaf depend- 5'5 enclume-.they movements of the tabulator carriage device and set it to effective machinea typewriter carriage a' "hold it there during travel ofthe e keys for converting the machine into a subtracting machine, said mechanism also ca puble of being moved into a neutral position by Saidleaf.

17. The combination lwithfa carriage and tabulating mechanism therefor, of computi'rg mechanism capable of performing either a dition or subtraction, a' normally inoperative device u on the carriage for determining whether t e computing mechanism shall add or subtract, a member to engage said carriage device and set it to eective' position, and means dependent upon the movements of the tabulating mechanism for controllin said member.

18. he combination with a carriage and tn'bulating mechanism therefoi-,of computirg mechanism capable of 'performing either a dition or subtraction, a normally inopera tive device upon -the carriage for determining whether the computing mechanism shall add or subtract, a member tolengage said ition and hold it there duri-n travel o f e carrage, and means depen ent upon the move- 90 ments of the tabulatm'g mechanism for con4 trollin said member.

19. he combination with a carriage .and tabulating mechanism' therefor, of computixg mechanism capable of performing either a ditionl or subtraction, a normally inopera tive device upon the carriage for determinin whether thecomputing mechanism shall adel or subtract or be neutral, a member to en e said carriage device and set-it to effective position, and means dependent upon the movements of the tabulating mechanism for controlling said member.

20. The combination with a. stepby-step feeding carriage and tabulating mechanism therefor, of computing mechanism including a master wheel, said computing including a.v portion. connected to .said carriageto trav'el therewith, a device upon the carriage t9. coperate therewith-for determining fwhether. the machine .add or subtract, a member to'fengage said carriage device and set it to. eeotive position. and.

in letter-feedin direction, and means pendent upon te movements of the tabulatmg mechanism for contrellmg said 21. A computing machine, combining a traveling carriage, a bichrome ribbon, nu-

meral keys, types o therefrom to.; print through said r1 bon,a eomputer op erated from the numeral keys to an item simultaneously with the printing' thereof, a member carried by thel carriage and having movement relatively-tossici cacriage, means controlled by said member when moving relatively to `said carriagefoi-j changing the state of the computer and altering the color of the 'ribbon .and .Mantidependent upon the carnage travel fen eifect- 130 liis 1,237,572 lf l ing the automatic return of said member relative to the carriage to thereby eiect return of the computer to its originalstate and the return o the ribbon toits original color.

22. .A computing machine combining a traveling carriage, a bichrome ribbon, nu-

4mei-al keys,I types operated therefrom to print through said ribbon, a computer op -erated from the numeral keys to register an item simultaneously with the printing Y thereof, a manually operable device carried .by the carriage and movable relatively thereto, means for repeatedly moving said device relatively` to the t carria e during each run of the carriage and s each'operation to alter the state of the 'computer and color of theribbon and means controlled in accordance with the-position of the carria e for effecting the automatic return of sai member to normal position with' respect to saidcarriage to thereby alter the state ofthe computer and the color of the ribbon repeatedly during each'run ofthe carriage.

23. A computing. typewriter includingpolychrome printing mechanism, a register, an' actuator therefor, a traveling carriage for bringing one Vdenomination after another of said register under the control of the'actuator, a member mounted on said carriage and movable relatively thereto, nieanr'ssettable` by hand at-the will ofthe formed and change the color of the printing, Iand means controlled by said-carriage for automatically restoring said member to 24. A computing combining polychrome typewritng mechanism includmg a computing mechanism for registering numbers written by saidtypewritingjmechamsm and including incansf settablc. to add or subtract .the-numbers 'the combination of Vnumeral `keys, ,a t I written, a 4spring for normally'holdingy said' settable means set forI addition, alatch for.

" holding Vsaid settablefmeans for subtraction,

tripping said latch. v y.

'25." In acombinedtypewritng 4and com-f ti hine the combinationxvitb -nupu ng mac havingparts, adapted tosweep' clear of at least' one of said pawls, anarm governed lzoi meral keys of computing mechanism and a moving with the cariage, .saidldevi ce also having a movement relative to said car-1 riage tabulating keys mechanism convertible to coperate in di erent ways with sind 60 numeral keys to affect the character of the computation and means brought into action on operation of a tabulating key foritioning said carriage and moving-sai 4de.- vce relative to said carriage to ective at `operator to` move nsaid 4member :relatively 4'by saidf; leaf to th`e carriage to thereby change the character yof the, arithmetical operation per- 'the combination -of numeral keys, a

normal position relatively to said carriage. i

':writer carriage.

carriage controlled by' said keys, a devicev convert vertin means.

27. a machined the sweetness', 'y the combination of numeral ke'ys, a ,t

writer carriage, a mechanism converti Ie `V to cooperate in different ways withV .said keys, links controlling said mechanism, a control ,shaft moving said links, anlarmon said shaft -for moving the same, a leaf on the carriageof the typewriter, atabulator key contro the setting of said leaf,I and -an arm onthe'main frame, moved by said leaf and moving said arm-on' said shaft 28. In a combinedtypewritingand coms" y I putng machine, the combination ofi nu- V9o I meral keys, a typewriter carriage, a mecha-1;?

msm convertible tocoperatejin different' i ways with said keys, means to' control said yconvertible mechanism, a tabulating device',

a' leaf pivoted on the carriage of tlietype-V 95 writer, a jack controllable by thetabulating device, said jackcapable of supportingsaid leaf, and anarn'i on the main frame moved' to "operate -said controlling means. `w I '29. In a machine of the classgdescribed,

pewriter Vcarriage, a mechanism convertib etc coperate'in different ways with said keys Vn tabulaftingke a jack oved' by sai 105 key, lugs on sai jack, a leaf on`the e-V having parts ada to rest on said lugs, annarin governed ysaid vert 'said convertible -mechansm so. In @machine sfila-'cass described,

and means controlled by said carriage for/ keys, a tabulati ',key a jack moved by said 1 15'.` i key, lugs on sai', -)ack ,'aleaf on the typewriter carriage havingparts adapted .to'bef intercepted by one o saidlugs,and .also

by said leaf, and a shaft moved 4bynsaid arm tocontrol the conversion of thecon- -l' vertible mechanism,

'31. In a combinedl typewriting andV i neutral condition2 a pivotedleaf l to travel with saidcarriage; and 'inean'sl" engage said leaf and itto. convert itil t computing mechanism, said leaf comprising a broad portion, a narrow portion, a diag- 'nul'conneciing said broad and narrow porlions, zi' still narrower portion, a diagonal connecting said still narrower portion,said

invertingr means including :i part to engage said portions.

32. In a combined typewriting vand com-J puting machine, numeral keys, a typewriter carriage, a tabulating iiiechanismgtherefor -including a key, a mechanism convertible to cooperate in different ways with said keys, and means to convert said convertible mechanism, comprising a leaf mounted on the carriage of the typewriter, a ]ack for l|olding'"said leat in given positions, and an arm' on the main frame controlling the convertible mechanism and moved by said leaf,

' said leaf being resettable bysaid tabulating -scttable to change the character of the arithmetical operation performed by the computin ineclianismyand coneomitantly convert said bichrome mechanism to a different conl dition,.a spring for normally lioldingsaid settable means in one position, a'latch for holding said scttable means inanother position, a sliding barfor operating said latch,

. and means whereby the travel, ofthe car 40 bininlg ringe operates said bar'.

' 34. A machine of the class specified, coma step-by-step feed-in carriage, numera keys, a. device operate from the numeral4 keys and convertible to co erate 'therewith indiii'erent ways, and tabu ating mechanism: for said carriage, said convertible device being convertible by said tabulating'mechanism, and said -carriage havin means effective through the travel thereo for. securing the automatic return of the convertible device toits originalstate after the tabulating operation.

35. A computing typewriter includingprinting mechanism', a register, an actuator therefor, 'a traveling carriage for bringing one denomination after another, of said register under the control of the actuator, a member mounted on the carriage and mov- 'able' relatively thereto, means settable by hand at the will of the operator to move said member relatively to the carria e to thereby change the character of the ariimetical operation performed by said register and means controlled by said carriage feor' automatically restoring said member to normal position. relatively tosaid carriage.

436. A computing. typewriter combining .A characteristic of the numeral type keys, a carriage controlled' tliereby, a computing mechanism convertible to different states and oo peratingwith said keys,v a device movable relatively to i the carriage for converting said computing mechanism repeatedly during each' iun of the carriage, and means de endent upon the 'movement o f the carriage or automatically 'restoring said device to normal position ref'eatedly during each run of the carriage.

'37. A. computing typewriter conibiniug numeral type keys, a carrmge controlled A thereby, a computing mechanism for coperation withsaid numeral keys, a device movable 'relatively to the carriage Afor setting Said computing mechanism toneutral posi tion so that it will not compute at the-opera tion of said keys, and means to enable said carria e to restore said device to condition to ena le' said coinputin mechanism to operate at `the operation o said keys.

38. A computing typewriter combinin numeral type keys, a carriage controlledl thereby, a computing mechanism forco eration .with `said keys, a device .movabe relatively to the' carriage fori converting said computingm'echanism to an opposite state at one part of the run o said carria ,and to a neutral statey at another part of ie run of said carriage, and means dependent u on the run of said-.carriageand effective ing a single run thereof, for restoring said' device and thereby said computing mechanism from its opposite state' and also from".

its neutral state. j

39'. A' combined typewriting and computing machine having a carriage, type operatin numeral key `computing mechanismca.-` pale of cooperation: with said keys and con-1 vertible from a state-to perform addition to either a state to perform; subtraction or a neutral state, means for determining fthe"v rintingf by said numerall keys, sai `-chara''cteristiji.-deterl .l

mining means convertible'froin-on to auf,

other of two conditions, andI connected with the convertible computing.. niechanisinfto operate under-one condition` for onestate of said computing mechi'ixiisxifi,and ,under` the other condition-` foieither" of 'the remaining.

two states thereof,'jand' means ldependent upon the. movement 'of said` caxaia'gef for. re,

storing thecharacteristicdetermining means to original conditionand concomitantly. re-A storing the comput' .mechanism to its nor.-

mal state .from eit er-.yof the a remaining.

states.

-40. In acombinedty ewriting andconip 'uting machine, the coin yination with 'a carriage, of a convertible computin mechanism, a. manually operable mem er, Aand means under the joint control, of said carringe and said manually operablemember,

for effecting a succession of conversions of said computing mechanism during asingle run df said carriage, said carriage having means for determlnin the character of the conversions, and sal manually o erable member having means for effecting t e conversions.

41. In a combined typewriting and computing machine, the combination with a carria e, of a vcomputing 4mechanism convertible to4 iferent states, a manually operable member, and means under the joint control of said carriage and said manually operable member, for effecting a succession of converl sions of said computlngmechani during a singlerun' of said carriage, said carriage having'means f or determining .the character of the conversions, and said. manually op- V erable member having means for eecting l carrie e.v

"'.the' conversions, and provision dependent upon the ,travel 'of the carriage being also madef for eil'ecting` the restoration 'of ,the ccmputingl mechanism to normal condition a succession 'ofltimes during each run of the 42. nj ajjcombined -typewriting 'and computing='maol1 ine`, ,the 'combination with a carriage;V ofV 'a omputingmechanism convertible. to addition, subtraction or .neutral .posij tion,'a. manually operable member movable V"',relatively to the carriage to determine when 'the computing' mechanism .shall be conv'ertedl and means dependentupon the posi'- Ationio the carriage andsaid movable meming the computing mechamsm'to no dition-from such of the two conditions t0 5 0 bei` for determining the character of each of a succession of conversions during a single run of the carriage.

43. In a combined typewriting and com.- puting machine, the combination with a carriage, of a computing mechanism convertible to addition, subtractionor neutral position, a manually operable member toV determine when the computing mechanism shallA be converted, means dependent upon the position of the'carriage for determining the .character of each of a succession of conversionsduring a single run of the carriage and means dependent upon the progress o the carriage during its single run for returno which it-may'have been converted` by said manually operablepmember..

s. Yesss.

' 44. In awcombinedtypewnting and com- 

